Stuffing-box packing.



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W/ T IVESSES G. L. REUSCHLINE. STUFFING BOX PAC KING.

APPLICATION FILED APR. 18, 1914.

Patent-ed May 23, 1916.

uvmvm/ v BY: I 67 ATTORNEY.

THE COLUMBIA PLANOGRAPH 00., WASHINGTON, D. c.

' -GEORGE I. REITSGHLINE, OF PI-I ILADELPHIA, PENNSYLVANIA.

STUFFING-B-OX PACKING- To all whom/it may co'noem:

Beitknown that I, GEORGE L. Bunsen- LINE, a Citizen of the UnitedStates,'residing in Philadelphia, county of Philadelphia,

and State of Pennsylvania, have invented new and useful Improvements inStuffing- Box Packing, of which the following is'a l and consists of anysuitable anti-friction specification.

v the character My invention relates tov a packing for reciprocatingrods, such as piston rods, or for rotary shafts. I

It is the object of my invention'to provide a packing which will preventescape of fluid,

liquid, gas or vapor from a chamber through a wall of which passes areciprocating rod or rotary shaft; and it is particularly the object ofmy invention to provide a packing for such use where the difference inpressure between the interior and the exterior of the chamber isrelatively great as, for example, ammonia compressors used inrefrigeration or ice making plants; To

these ends I have provided a packing com prising a ring, preferably ofantiafriction material, embracing the rod or shaft, with a ring ofyielding, resilient or more or less compressible material peripherallyor circumferentially surrounding the first" named ring,the two, ringsfilling the space between the rod or shaft and the inner wall of'thestuffing box; and Ipreferably use in combination therewith washersorrings extending across the joint between, the first named rings andpreferably extending from the rod or; shaft to the interiorwall of thestuffing box. 7 y j My invention resides in a packing of hereinafter 7described and claimed.

. "For an illustration of one of the forms inyinvention maytake-reference is to be had to the accompanying drawing, -;in which:

Figure 1 is a longitudinal sectional view through a stufiing box and-gland' -andf through the packing, the shaft or r'od being' shown inelevation. Figs. 2 and3 "areplan views of rings or'washers' Figsf 4and'5 areplan views of the inner and outer rings respectively.

In Fig. 1,

2 of an englne or compressor cylinder; or of tends the rod or shaft 3.-Extending into the 'outerjend of the stufling box 1 is "the- 1 is thestufiing box on the wall any other cliamber through which' wallexmaterial so that there shall be a minimum of friction between thestationary ring 9 and the shaft or rod 3. This anti-friction materialmay be, for example, of Babbitt metal or any other suitableanti-friction metal. Or it may be a compound, as of antifriction metaland graphite with a binder such as rubber or- Para gum. The nature ofthe material of the ring 9 being generally such that it is not easilybent or being brittle-or granular, the ring is divided into two parts asindicated in Fig. 5 which parts are placed aroundthe rod Or shaft 3 inthe position indicated in Figs. 5 and 1. Peripherally orcircumferentially surrounding the ring is the ring 10 of material whichis compressible or which yields under pressure' and which maybe more orless resilient. The ring 10 may be cut, as on a slant asindicated' inFig. .4, and the ends spread apart .to place the ring in positionaround'the shaft or rod 3 and the inner ring 9 into position indicatedin Fig. 1. The

ring "10 may be of fibrous material, as cottonor'other fabric, such.astick', which may be impregnated with suitable material, for

example rubber or gum, or it may be a rubber ring. And the ring 10'mayhave a 'hole or :core 11 ,extending circumferentially therethrough. Bypreference I employ a plurality or a series of pairs of inner and outerrings 9 and 10, as indicated in And on either or both sides of a pair ofrings 9 and 10, or between neighboring pairs of rings, is disposed aring, which may be relatively thin, like a washer, extending across thejoint between the rings9- and shaft 3'fand the interior wall of thestuffing box 1; or I may use a plurality of such rings'or washers and Ihave so indicated them i'n Fig. 1. In the example illustrated there aretwo washers 12, as of lead, tin or other suitable metal or othermaterial, between which is disposed a washer or ring 13 preferably ofmaterial more or less compressi'ble, or which may be resilient, as forPatented May 23, 19 16. "App1ication filed April 18, 1914. Serial No.832,706. 3

-10-a'nd having a neat lit with the rod or V example, rubber, oil proofrubber, or'gum' 4 to place the rings around the shaft or rod 3.

The gland 4 having been removed, the packing elements may be placedinposition as above described in the relation illustrated I in Fig. 1. Thegland is then ,entered into the box '1 and by advancin'g the nutsf8i1pon the studs 6the gland is forced towardqthe right against thepacking. The pressureex 'erted upon the packing compresses the rings 10,which in the uncompressed state maybe thicker longitudinally of theshaft or rod the rings 9 and gs exert a radial pressure througho t theripheryor circumference oflthe rings forcs ing thelatter snugly againstthe shaft or rod "saving of ammonia but also from thegifact that .theengineer or attendant-is notire '4 v changing operating compressorcylinder.

3. And the compressible ivashers 13 are also compressed by thispressureoff the gland and the rings' or washers 12 fit'snugly; and tightlyagainst the sides of.- rings9 and, 10 and neatly against the shaft, orrod sand" the inner Wall of the box 1.

A packing of the; character above de- V i v scribed prevents leakagearoundor','alongfing a singleinner ring ij'f 'b tantially' in a,

' the shaft or rod 3 even When the difli'ere'ncef in pressures Withinand Without the cham-1 her or cylinder is relatively great. Y

The arrangement described; due 7 to the resiliency of the ring '10,particularly when it is-under compressiom fcauses the 'inner ring 9 tobemaintained snugly against the rod or'shaft 3 throughout allyariationslof temperature of the parts, sim'ultaneouslyv I have usedthis packing lin connection V with'ammonia compressorsand as aresu'lt, Qleakage of ammonla from vv1th1n the com-41 pressor cylinder is -c omp'letely prevented, thus affording an eoonomyinotonly by' the 7 otherthan those hereinbefore mentioned; maybeused- What'Iclaim is:

1. Ina packing, a packing unit compris ing "an inner ring'ofsubstantially incom f pressible'material, an outer ringiof coinspressible material inclosing said inner;riiig,lsaid outer ring having ahole extending cir" cumierentially thereof, and means for (1x ertingpressure laterally on said outer ring .for compressing the same to athickness not exceedingthe thiclmess of saidrin'ner' l'il lgf' saidouter ring solely exerting radial pres sure upon said inner ring. j

7 said;innerfringvprodueihg no radial pressure thereon.

;; held against the ends of, said ring; and hav-.

ring having space when undenicompression y n 'pan'sion of said innerring. i "malnta nlng a tight oint between thejrmg,

10 and the inner Wall of the stuffing box 1;

a I I6- ln a pa a ai ln i yo lpi ins' unitsjdisposedisideggbv sideandjeachopera-w tive independentlyjof the other in a radial direction, eachunit comprising. a single, in- 1 a 7 her ring] ff substantially jiincompressible" It Will be understood that my invention is not limitedto thematerials specified forjthe various packing elements and thatmaterial'sQmaterial an outer ring: inclosing, said inner ring I andconsisting; of compressible res'ili-' ent nat'eri'al, washers betweenneighboring units and extending across thejointsotthe} irings of rtheunits, and meanslforexertingi l,ateral-.pressure on said units, saidpress producing} no jradial pressure on said 2411i taking, as; am ans-aat; stantiallyincompressible material," an outer,

ring 1 of 7V compressible "material surrounding a I said inner ringand's'olely exerting thereon radial zpressure throughout its 9circum'fervo ence, said Outerring having when not under 7 compressionathickness greaterthan said inner ring, 5 and means, for Compressing saidouter ring'to' a th ckness not exceedingithat of sald lll llel lll lg.

3. In'apa'cking, apackingnnitfcpmprls V f ing a singleinnerring ofsubstantially incompressible materiah: washers [held 3 against Q the endof said rihgfand having diameters: q greater than saidfring,and.an'outemringohw compressible. materialsurr unding said.sin i gleinnerring andi'h'eld compressedhet vefen said washers to exert radialPIBSSUIQEQII said inner ring, saidouterfring having space 'When undercompression'into which itfis 8'5? further compressed upon expansion lof"1: a inner ring, the pressure of sald Washers; 0.11 -7 11m r ra ihgiiii j mn'r 7 ompressible anti-friction: man, sh

, ing diametersgreaterthan said ring, and an outer ring ofcompressibleresilient-material I surrounding: said single; innerring andheld compressednbetweensaid Washers, saidouter- 1.- 7

intovvhichit isffurthercompresseduponiex i' a Ell-- g 10 V 'a-p i 1 s;ninne ri s t url' friction substantially incompressibl mate- Qrial, anouterringiof compressiblemateriah .surrounding said inner ringQj andsolely ex; :-ert i ng1,thereon. radial, pressure throughout kt o rwmf fn e .thereof,f.said summingj having whennotfunder compression a thick-'ness greater than said.inner;ring,,-and means v I for compressingsaidoouter ring tova -thick; .quired to continually watch'thepackingfand change the, pressure of the gland?jzvith conditions Withinthev 'ness notzexceeding that. offs aid inner ring. '5

rings and compressing said "outer rings :to; I

] exert'radial pressure on said innerjringsr "7. 'InQ-a packin apluralityg of.packing 1'25 unitsldisposedside by side, and each jopera;

tiye.:i;ndependentlyfofthe otherlinrfagradial directron; eachannitcomprising ;a single" in:- ner" ring of F substantially incompressible;

imat'erial; anouter; ring inclosing saiidlinner I 1 fi ring andconsisting of compressible resilient material, washers of compressibleand f incompressible material between neighboring units and extendingacross joints of the rings of said units, and means for exerting lateralpressure on said units, said pressure producing no radial pressure onsaid inner rings and compressing said outer rings to exert radialpressure on said inner rings.

'8. In a packing, a plurality of packing units disposed side by side andeach operative independently of the other in a radial direction, eachunit comprising a single inner ring of substantially incompressiblematerial, an outer ring inclosing said inner ring and consisting ofcompressible resilient material, washers between neighboring units andextending across the joints of the rings of the units, the outer ring ofa unit having space into which it may be further compressed uponexpansion of the associated inner ring, and means for exerting Copies ofthis patent may be obtained for lateral pressure on said units, saidpressure produclng no radial pressure on sa1d inner rings and compressng sa1d outer rings to exert radial pressure on said inner rings.

9. In a packing, a. plurality of packing units disposed side by side andeach operative independently of the other in a radial direction, eachunit comprising a single inner ring of substantially incompressiblematerial, an outer ring inclosing said inner ring and consisting ofcompressible resilient material, washers between neighboring units andextending across the 'joints of the rings of the units, theouter ring ofa unit when not under compression between said washers having athickness greater than the thickness of the inner ring and having spaceinto which it is further compressed upon expansion of the inner ring,and means forv exerting lateral pressure on said units, said pressureproducing no radial pressure on p sa1d lnner rings and compressing sa1douter rings to exert radial pressure on said inner rings. 1 i

10. In a packing, a plurality of packing units disposed side by side andoperative independently of each other in a radial direction, each unitcomprising a single substantially incompressible inner ring of anti-friction metal and lubricating material,

an outer compressible ring of fabric and. rubber, washers against thesides of each incompress the same against said inner ring,

said outer ring solely exerting only radial pressure upon sa1d mnerring.

In testimony whereof I have hereunto afiixed my signature in thepresence of the two subscribin witnesses.

GE RGE L. REUSCHLINE. Witnesses:

CARLYJ. JEFFERSON, ALICE S. MARSH.

five cents each, by addressing the "Commissioner of Patents, Washington,D. O.

It is hereby certified that in Letters Patent No. 1,184,212, granted May23, 1916, upon the application of George L. Reuschline, of Philadelphia,Pennsylvania, for an improvement in Stufling-Box Packing, errors appearin the printed specification as follows: Page 2, line 79, for the Wordend read ends; same page, line 97, claim 4, after tllG'WOI'd Washers andbefore the comma insert the words to eatert radial pressure on saidinner ring; same page and claim, line 100, strike out the period andinsert a comma and the Words the pressure of said washers on said innerring producing no radial pressure thereon; page 3, line 4, claim 7,before the Word joints insert the article the; and that the said LettersPatent should be read with these corrections therein that the same mayconform to the record of the case in the Patent Ofiice.

Signed and sealed this 13th day of June, A. D., 1916.

[SEAL] R. F. WVHITEHEAD,

Acting Commissioner of Patents.

